{"id":"CVE-2026-57956","title":"SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules","summary":"SigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organiz…","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L","cvssSource":"cna","cwe":["CWE-639"],"vendor":"SigNoz","product":"signoz","affected":["signoz < 0.133.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-29T19:22:20.395999Z"},"exploitAvailable":true,"published":"2026-06-29","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:06:41.099Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57956","references":[{"url":"https://github.com/SigNoz/signoz/issues/11830","label":"Researcher Disclosure"},{"url":"https://github.com/SigNoz/signoz/releases/tag/v0.133.0","label":"signoz 0.133.0 Release Notes"},{"url":"https://github.com/SigNoz/signoz/pull/12117","label":"Pull Request"},{"url":"https://www.vulncheck.com/advisories/signoz-cross-organization-insecure-direct-object-reference-in-alert-rules"}],"tags":["cve.org","exploit-available"],"epss":0.00353,"epssPercentile":0.29176,"ingestedAt":"2026-11-08T14:51:22.315Z","slug":"CVE-2026-57956","body":"## Overview\n\nSigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers can read, edit, and delete alert rules belonging to other organizations by exploiting the missing tenant isolation check, bypassing multi-tenant access controls.\n\n## Affected\n\n- `signoz < 0.133.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":35.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}